	@media screen and (min-width:1200px) {
	  html {
	    font-size: 20px;
	  }
	}

	@media screen and (min-width:800px) and (max-width:1200px) {
	  html {
	    font-size: 16px;
	  }
	}

	@media screen and (max-width:800px) {
	  html {
	    font-size: 12px;
	  }
	}

	* {
	  margin: 0;
	  padding: 0;
	  box-sizing: border-box;
	}

	#container {
	  width: 65%;
	  height: 30rem;
	  margin: 2rem 20%;
	  overflow: hidden;
	  font-family: 幼圆;
	}

	#left {
	  width: 25%;
	  height: 30rem;
	  background-color: black;
	  color: white;
	  float: left;
	}

	#left ul {
	  width: 100%;
	  height: 100%;
	  list-style: none;
	}

	#left ul li {
	  width: 100%;
	  height: 10%;
	  text-align: center;
	  line-height: 3rem;
	  cursor: pointer;
	}

	#left ul li:hover {
	  background-color: rgba(255, 0, 0, .5);
	}

	#right {
	  width: 75%;
	  height: 30rem;
	  float: right;
	  position: relative;
	  overflow-y: auto;
	}

	#right p {
	  width: 100%;
	  height: 100%;
	  padding: 5%;
	  word-spacing: 0.25rem;
	  position: absolute;
	  top: 0;
	  left: 0;
	  text-align: justify;
	}

	#right b {
	  font-size: 1.5rem;
	  color: red;
	  font-family: 幼圆;
	}

	#right span {
	  color: blue;
	}